參數(shù)資料
型號: HCF4521
廠商: 意法半導體
英文描述: 24 STAGE FREQUENCY DIVIDER
中文描述: 24舞臺分頻器
文件頁數(shù): 7/12頁
文件大?。?/td> 102K
代理商: HCF4521
FUNCTIONAL TEST SEQUENCE
Inputs
Outputs
V
DD
Comments
RESET
In2
Out2
V
SS
Q18 thru
Q24
0
1
0
0
V
DD
GND
Counter is in three 8-stage sections in parallel mode.
Counter is reset. In2 and Out2 are connected togheter
First ”0” to ”1” transition on In2, Out2 node.
255 ”0” to ”1” transitions are clocked into this In2, Out2
node.
0
0
0
0
0
0
0
0
0
1
0
1
1
0
0
1
1
0
1
0
1
1
0
0
0
0
1
V
DD
V
DD
V
DD
V
DD
V
DD
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
V
DD
V
DD
V
DD
0
0
0
1
1
1
1
1
0
The 255th ”0” to ”1” transition.
Counter converted back to 24-stages in series mode.
Out2 converts back to an output
Counter ripples from an all ”1” state to an all ”0” stage.
Atestfunction(seefig.8)has been included forthereduction oftesttimerequiredtoexerciseall 24counter stages.Thistestfunctiondividesthecounter
intothree8-stagesections and255counts areloaded ineachofthe8-stage sections inparallel.Allflip-floparenow ata logic”1”.Thecounter isnow
returned tothenormal 24-stages inseriesconfiguration. Onemorepulse isenteredintoInput2 (In2)whichwillcause thecountertoripplefromanall”1”
statetoanall”0”state.
RC Oscillator Circuit
Functional Test Circuit
f
1
2.3 R
TC
C
R
S
2R
TC
finHz, RinOhms,C inFarads
HCF4521
7/12
相關PDF資料
PDF描述
HCF4521B Octal Buffers/Drivers With 3-State Outputs 20-LCCC -55 to 125
HCF4521BEY Octal Buffers/Drivers With 3-State Outputs 20-CDIP -55 to 125
HCF4521BM1 Octal Buffers/Drivers With 3-State Outputs 20-CFP -55 to 125
HCF4522BM1 PROGRAMMABLE BCD DIVIDER-BY-N COUNTER
HCF4522B Octal Buffers/Drivers With 3-State Outputs 20-LCCC -55 to 125
相關代理商/技術參數(shù)
參數(shù)描述
HCF4527BEY 功能描述:IC MULTIPEXER BCD RATE 16-DIP RoHS:是 類別:集成電路 (IC) >> 邏輯 - 信號開關,多路復用器,解碼器 系列:4000B 標準包裝:2,000 系列:74CB 類型:FET 總線開關 電路:8 x 1:1 獨立電路:1 輸出電流高,低:15mA,30mA 電壓電源:單電源 電源電壓:2.3 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:20-TFSOP(0.173",4.40mm 寬) 供應商設備封裝:20-TVSOP 包裝:帶卷 (TR) 產品目錄頁面:951 (CN2011-ZH PDF) 其它名稱:296-19129-2
HCF4532BE 制造商:STMicroelectronics 功能描述:
HCF4532BEY 功能描述:編碼器、解碼器、復用器和解復用器 8-In Priority Encodr RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量(輸入/輸出):2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
HCF4532BEY 制造商:STMicroelectronics 功能描述:IC 4000 CMOS 4532 DIP16 15V
HCF4532BM1 功能描述:編碼器、解碼器、復用器和解復用器 8-In Priority Encodr RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量(輸入/輸出):2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray